NASA has selected four astronauts to train and prepare for commercial spaceflights that will return American launches to U.S. soil and further open up low-Earth orbit transportation to the private sector.
If a NASA experimental program pans out, the first aircraft on Mars could be a flying wing. Under development at NASA Armstrong, the Prandtl–m is a flying wing glider designed to fly piggyback with a future Mars rover mission to provide low-altitude
"Earth's rotation is gradually slowing down a bit, so leap seconds are a way to account for that," said Daniel MacMillan of NASA's Goddard Space Flight Center in Greenbelt, Md. Strictly speaking, a day lasts 86,400 seconds.
Total solar eclipse is that during which the Moon totally blocks the light of the sun – can be seen somewhere on Earth every year or two. Totality can occur anywhere on the planet and usually in remote locations.
Astronomers at the Leiden Observatory, The Netherlands, and the University of Rochester, USA, have discovered that the ring system that they see eclipse the very young Sun-like star J1407 is of enormous proportions
The sun emitted a mid-level solar flare, an M6.6-class, peaking at 11:32 pm EDT on Oct. 28, 2014 – the latest in a series of substantial flares from a giant active region on the sun
The Google Lunar XPRIZE (GLXP) is an inducement prize space competition organized by the X Prize Foundation, and sponsored by Google. The challenge calls for privately-funded spaceflight teams to compete to successfully la
Earth is the only place that we know for certain supports life. Many claims have been made by observers who thought they saw evidence of life on Mars, but we now know they were tricked by the very difficult measurements. From Earth, even with our most pow
Concerns about climate change, rising pollution from fossil fuels and to meet the ever increasing demand of power supply require increasing use of renewable energy in coming years.